User's Manual

QL 420 User’s Guide 25

• EN 300 328-2 V1.2.1 (2001-12)- Technical requirements for

spread spectrum radio equipment

• EN 300 328-2 V1.1.1 (2000-09)- EMC requirements for spread-

spectrum radio equipment

In France there are restrictions in the use of this device. A restricted

frequency band exists in France. When operating this device on French

territory you may only use channels 10 and 11 (2457 and 2463 MHz). It is

not allowed to operate this device at any other frequency supported by the

device. For more information see http://www.anfr.fr/

Bluetooth™ Networking Overview

In order to exchange data, two Bluetooth enabled devices

must establish a connection. Bluetooth software is always run-

ning in the background, ready to respond to connection requests.

One device (known as the

master

or the

client)

must request a

connection with another. The second device (the

slave

or the

server

) then accepts or rejects the connection. A Bluetooth en-

abled QL 420 will normally act as a slave, but in theory any Blue-

tooth device can be either a master or a slave. This miniature

network is sometimes referred to as a “piconet” and can consist

of several Bluetooth enabled devices.

Each Bluetooth QL 420 has a unique Bluetooth Device Address

(BDA) loaded into its Quick Link module when manufactured.

For the most part, communications using the Bluetooth protocol

are initiated and processed without any operator intervention,

much like the IrDA system described previously.